Kevin Karhan :verified:<p><span class="h-card" translate="no"><a href="https://mastodon.social/@geerlingguy" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>geerlingguy</span></a></span> I think it's rather a matter of cheap options...</p><p>485mm = 19" is having enough space [15mm total] to have enough room to make something 500mm wide outside with good tolerances...</p><ul><li>So 2x 5-7,5mm material strenght gets you the 19" inside and the 500mm outside depending on the wiggle room desired...</li></ul><p>It's also the reason why 19"/485mm gets adopted in <a href="https://infosec.space/tags/metric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>metric</span></a> areas because even <a href="https://infosec.space/tags/metrified" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>metrified</span></a> it's loose enough and tight enough for the desired use-case. </p><ul><li>It's just a happy coincidence that these seem to align, plus most suppliers will have 19" as a standard form factor - or do you think <a href="https://infosec.space/tags/IKEA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IKEA</span></a> is setting up their own <a href="https://infosec.space/tags/production" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>production</span></a> plants like <a href="https://infosec.space/tags/metalworks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>metalworks</span></a>? Hell no!</li></ul>